Dunlavy SCIVA'S... Mine sound bland


First of all I am no expert and I just want to enjoy my music.  The room in question has been professionally treated by company with diffusers and absorbtion.  So the room is ok, not the best but I have put money into the room.  The preamp is a tube unit called the dude from tube research labs.  The amps are mcshaned citation II's that are bridged and running as monoblocks.  Last week I paid an individual with over 40 years of audio setup experience to come and help me out.  His initial feedback was the speakers were just very drab...  No life and nothing special.  I then hooked a pair of modified lascalas and he was OMG, they blew the dunlavy away in all aspects.  This can not be true??  So I have been reading....  All drivers are good on my dunlavy.  Could I be underpowering them??  Another theory is the crossovers need freshened up....  I'm at a loss...  Any help would be appreciated.  The last thing I need is to start any flaming on here...  I'm located near Chattanooga, TN and would kill to find someone close by to help me with this issue.
robmag
I have two of the original Son of Ampzilla's. From GAS - not a Bongiorno design. Andy Hefley did these, along with the Thoebe preamp (have one of those also). Along with a Sumo Andromeda and preamp. All good stuff!
Even when properly powering the Dunlavy you are not going to get a dazzling sound . They are dead flat which will sound dead compared to other speakers that are not flat in response . 
@robmag - The Dunlavy's where part of the best system I've ever heard (at a dealer around 1996). System was: Dunlavy SC-IV a, Audio research LS-2 pre, ARC VT-130 tube amp, CEC disk spinner and Theta DS Pre/Pro DAC. Wire was all Dunlavy. Cleanest, clearest, most image-correct sound I've ever heard (playing Sade's "Stronger Than Pride"). Truly the definition of "Holographic". Good luck with yours...
That is very interesting that the ARC performed so well with it...  I would have thought my citation II's bridged would have performed closely.  I guess I need to do some swapping around to see.
@roberjerman..................................

the original GAS Son of Ampzilla was most certainly designed by the late James Borgiorno.  I met him at Natural Sound when the amp first came out, spoke with him extensively, and bought the demo unit he was showing. What a nice man, so gracious and humble.